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US 2022/0029833 A1Published application
Providing a challenge to a device
AssigneeInfineon Technologies AG
InventorsThomas Poeppelmann, Wieland Fischer, Bernd Meyer
Life of this patent
Estimating the term…
Abstract
A method for providing challenges to a device comprising (i) compiling a first challenge based on a first random value and a parameter; (ii) compiling a second challenge based on a second random value, the parameter and based on the first challenge or any intermediate result thereof; and (iii) providing the first challenge and the second challenge to the device.
Claims22
A method for providing challenges to a device, the method comprising:
- compiling a first challenge based on a first random value and a parameter;
- compiling a second challenge based on a second random value, the parameter, and based on the first challenge or any intermediate result thereof;
- and
- providing the first challenge and the second challenge to the device.
1 more element
A host arranged to:
- compile a first challenge based on a first random value and a parameter;
- compile a second challenge based on a second random value, the parameter and based on the first challenge or any intermediate result thereof;
- and
- provide the first challenge and the second challenge to a device.
1 more element
A system comprising a host and a device,
- wherein the host is arranged to:
- compile a first challenge based on a first random value and a parameter;
- compile a second challenge based on a second random value, the parameter and based on the first challenge or any intermediate result thereof;
- and
- provide the first challenge and the second challenge to the device;
- wherein the device is arranged to:
- compile a first response based on the first challenge received and compile a second response based on the second challenged received;
- provide the first response and the second response to the host;
- and
- wherein the host is further arranged to authenticate the device several times based on the at least two responses received from the device.
7 more elements
Dependencies are inferred from the claim text.